screws › machine screws
16991-6F20
Screw
Description
Fastener Length: 1-1/4", Thread: 3/8-24, Head Width: 3/16", Thread Length: 1-1/16"
Specifications
| Countersink Angle | 80.0 degrees minimum and 84.0 degrees maximum |
|---|---|
| Fastener Length | 1.250 |
| Head Diameter | 0.720 inches minimum and 0.781 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | Hexagon |
| Length | 1 1/4 |
| Material | Steel |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Qq-p-416 ty 1, cl 3 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.375 |
| Thread Direction | Right-hand |
| Thread Length | 1.063 |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series Designator | UNF |
| Thread Size | 3/8 |
| Width Across Flats | 0.218 |
Cross-reference
No interchangeable or dimensionally similar parts are on record for 16991-6F20. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error